Kairomone response inThanasimus predators to pheromone components ofIps typographus |
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Authors: | Alf Bakke Torstein Kvamme |
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Affiliation: | (1) Norwegian Forest Research Institute, N-1432 Às-NLH, Norway |
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Abstract: | Thanasimus formicarius (L.) responds to racemic ipsdienol and ipsenol and less to (S)-cis-verbenol. All three are pheromone components in several bark beetles of the genusIps. Synergistic effects appeared when the components were combined. Methylbutenol alone, the specific pheromone component ofIps typographus, elicited no response, but synergestic effects appeared when methylbutenol was combined withcis-verbenol and ipsdienol. The sympatric speciesThanasimus femoralis (Zett.) responds to (S)-cis-verbenol, while ipsdienol and ipsenol synergize the response. |
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Keywords: | Kairomone pheromone Thanasimus Ips typographus ipsdienol ipsenol cis-verbenol methylbutenol traps attractant behavior Scolytidae Cleridae |
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